Preprint of CHI 2015 paper on Substitutional Reality now available

A preprint version of our recent paper on “Substitutional Reality” is now available. Additional video material will become available shortly.


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A.L. Simeone, E. Velloso, and H. Gellersen.
Substitutional Reality: Using the Physical Environment to Design Virtual Reality Experiences
In Proceedings of SIGCHI Conference on Human Factors in Computing Systems (CHI 2015). ACM, pp. 3307-3316.

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Experiencing Virtual Reality in domestic and other uncontrolled settings is challenging due to the presence of physical objects and furniture that are not usually defined in the Virtual Environment. To address this challenge, we explore the concept of Substitutional Reality in the context of Virtual Reality: a class of Virtual Environments where every physical object surrounding a user is paired, with some degree of discrepancy, to a virtual counterpart. We present a model of potential substitutions and validate it in two user studies. In the first study we investigated factors that affect participants' suspension of disbelief and ease of use. We systematically altered the virtual representation of a physical object and recorded responses from 20 participants. The second study investigated users' levels of engagement as the physical proxy for a virtual object varied. From the results, we derive a set of guidelines for the design of future Substitutional Reality experiences.
author={Simeone, Adalberto L. and Velloso, Eduardo and Gellersen, Hans},
title={Substitutional Reality: Using the Physical Environment to Design Virtual Reality Experiences},
booktitle={Proceedings of the 33rd annual ACM conference on Human factors in Computing Ssystems},
series = {CHI 2015},
pages = {3307--3316},
numpages = {10},
url = {},
doi = {10.1145/2702123.2702389},
publisher = {ACM}}

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